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NYAGOS vs Elvish: catalog facts
NYAGOS	Elvish
Free Free and open source under the BSD 3-Clause licence.	Free Free and open source.
Windows, Command line	Windows, macOS, Linux, Command line
Combines Unix shell habits with Windows command conventions Documentation in English and Japanese	Readable scripts with lists, maps and functions Catches errors like undefined variables before running
Smaller community than PowerShell or bash Some documentation is primarily in Japanese	Not POSIX compatible, so Bash scripts do not run unchanged Smaller ecosystem than Bash, Zsh or Fish
Downloadable app	Downloadable app
Open source	Open source
License: BSD-3-Clause	License: BSD-2-Clause
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.